80431161 has 24 divisors (see below), whose sum is σ = 118140480. Its totient is φ = 48574944.

The previous prime is 80431159. The next prime is 80431163. The reversal of 80431161 is 16113408.

It is an interprime number because it is at equal distance from previous prime (80431159) and next prime (80431163).

It is not a de Polignac number, because 80431161 - 2¹ = 80431159 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80431163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23295 + ... + 26523.

It is an arithmetic number, because the mean of its divisors is an integer number (4922520).

Almost surely, 2^80431161 is an apocalyptic number.

It is an amenable number.

80431161 is a deficient number, since it is larger than the sum of its proper divisors (37709319).

80431161 is a wasteful number, since it uses less digits than its factorization.

80431161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293 (or 3274 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 80431161 is about 8968.3421544899. The cubic root of 80431161 is about 431.6596416786.

Adding to 80431161 its reverse (16113408), we get a palindrome (96544569).

The spelling of 80431161 in words is "eighty million, four hundred thirty-one thousand, one hundred sixty-one".